It's surprisingly difficult to find a source listing Perpetual Groove as the Thursday night Pre-Festivities show. But I was there in person, and you can download the set from archive.org. It was an unforgettable show... I highly recommend checking it out. [1]
Whoever listed Les Claypoll w/ Lady Gaga as the June 9th show... I don't know where that came from, her first album wasn't released until 2008. [2]